Wheel.



M. B. OKUN.

WHEEL.

APPLICATION FILED APR. 11v 1912.

1,058,998. Patented Apr. 15, 1913.

5' au'ueufoz wwm V w I Mfr/3501f! UNITED sTA'rEs PATENT OFFICE.

MORRIS B. OKUN, OF SEATTLE, WASHIKGTO'N.

To all whom.- it may Concern 9! Letters Pa ent.

Application filed April 1' .'.1 outed Apr. 15, 1913.

serial No. 690.208.

boxes 7 being parallel and snugly engaging Be it known that I, Moiuus ii. OMN. a the opposing faces of the related charnlwml citizen of the United States of America, and a resident of the citof Seattle, in the county of King and tate of Washington, have invented certain new and useful Improvements in heels, of which the followin is a specification.

I y invention has particular reference to'a self cushioning wheel embodying a tread portion formed of sections arranged end to end circumferentially of the wheel and yieldingly supported for independent inward movement to obtain a desired cushion-- ing effect, and has for a primary object the provision of a simplified and improved construction of this character which is durable, comparatively inexpensive to manufacture and capable of being readily set up.

Other objects will be set forth as my description progresses and those features of construction, arrangements and combina tions of parts on which I desire protection, succinctly debuted in my annexed claims.

v Referring to the accompanying drawings,- whereln like numerals of reference indicate like parts throughout: Figure 1 is a fragmentary elevation of the wheel, as viewed from the inner side, parts being broken away. Fig. 2 is a fragmentary vertical section of the wheel taken on line 2-2 of Fig.

1. Fig. 3 is a horizontal section taken on' line 3-3 of Fig. 1 and illustrating. more particularly my chamber for the fluid. ig. 4 is a vertical sectional view showing a modified construction, and Fig. 5 is a fragmentary vertical section illustrating more particularly my fluid chamber in modified arrangement.

Referring to the drawing by numerals of reference 1 indicates a hub, the axle box 1' of which is provided with annular external flanges Q and 3, the latterof which has screw-threaded engagement on the outer end portion of axle box 1'' as clearly shown in Fig. 2.

Reference numeral 4 indicates a felly, and 5 spokes, the said felly being formed with apertures 4' between the spokes for re cept-ion of'stcms 6. Stems 6 have their outer end portions externally threaded and engaged in boxes 7 which boxes carry. the

tread parts 7 and formed in conjunction the chambers incident to the inward movement of the tread sections. Chambers 8 are formed by edge flanges 9 and 10,01 felly 4, and intermediate partitions 11. In the construction shown in Figs. land 2 flanges 9 and 10 are in the form of annular plates, bolted, as at '12, to the folly, and said flange 9 is provided with the partitions 11, and a connecting flange 13 adapted to-seat on felly 4 to form the bottom walls of chambers 8.

In the construction shown in Fig. 4 the bottom Walls for the chambers 8 are formed by'a member 13 which maybe the usual metal tire of a solid wooden wheel. Plates 9, 10' abut member 13 and said plate 9' is provided with angular extensions 11' to rovide partitions, as in the first described orm of my invention. Reference numeral 14 indicates the fluid chamber, the-same being provided with a central opening 14 for rece tion of the axle'box 1, and in its inner si e face with seats 14" for rece tion of spokes 5. Reference numeral 15 indicates stems 6 are mounted. Beneath plungers 16 are provided s rings 17 which act in conjunction with tlie compressed fluid of chamber 14 'to' force the tread sections. outwardly to their normal positions.

lars'fi' of the latter, and felly 4, as clearly shown in Figs. 1 and 2, cushion the outward movements of the tread sections, as is apparent.

In practice, I preferably employ air under pressure in the chamber 1.4, the air being supplied h ough a valved connection 20 by a suitable pump, as will "be readily under- Springs 18, encircling stems Sand interposed between colstood. Through the provision of chambers 8 and the boxes 7,"in the manner hereinbefore described, liability of injury to the stems 6 is reduced to a minimum and further aux-' iliary air cushions are obtained.

My invention can be applied to standard or other suitable wooden or iron wheels, the only change necessitated being the forming of the telly with the apertures 4 with which suitable apertures 8; of chambers 8 register for reception of the stems 6 and also to permit 'of the ingress and egress of air with respect to the chambers. By forming chap ber 14 in the manner describedit can" 0- r adily inserted over the axle box -1' of lntb 1 to fit snugly about spokes- In the construction shown in Fig. 5, chamber ll is provided with aperttircd lugs Ll through which securing means, as screws 21 are passed for securing the chamber to the huh I". In this construction the chamber 14" is formed with seats for the spokes 5', as in my tirst described construction.

Having. thus describedatrv invention what I claim as new; and desire to secure bylietter's latent of the United States of America, is 1- Y l. A wheel comprising a hub, it fell), spokes connecting said fell to said hub,a

fluid chamber seated on said hub and formed with recesses to receive said spokes,'tl1e said recesses of said chamber extending inwardly from one side thereof. said llnid chamber being provided with hollow radial extensions lying between the said spokes. plungers alidably mounted in the radial extensions of said .fittid chamber, and having stems projecting through said felly. and tread sections arranged end to end in outwardly spaced relaltibn, to said fell v and each secured to the .stem of awspecttve plunger.

2. A wheel comprising a hub a folly, spokes Connecting said felly to said hub, a

tiuid-ehzimber removably seated on said lmb 1nd engaging between sa'id'spolces and pro 'vi'ded irith radial extensions, plungers slidabl mounted in the extensions of said fluid chamber, stems secured to said plungers and projecting through said felly. guides removablv secured to said fell and tread sections slidably fitted between said guides and each secured to a res"ective stem.

3. In a whee construction, a fell) provided with apertures spaced lengthwise thereof, a fluid chamber arranged inwardly of said telly and provided with hollow ra-- dial extensions, means for holding said chamber in rigid relation to said telly. )lungers mounted in theextensions of said claimber andlut iug stems projecting through the apertures of said fell v -tread sections-secured to the outer end port ions of the stems of said phmgers, res lient means comprising springs in the extensions of said chamber beneath said plungers tending to force the la tter toward said telly, and other resilient means for cushioning outward movement of said plungers.

Signed day of April, 1912.

MORRIS B. OKUN. Witnesses Sun-max A. Bnoo cs, I Amara ADAMS.

I t Seattle, \Vasliington; this 3rd. 

